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BOSTON MARATHON 2025

Pui Hung Robert Yam

Bib: 12778•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 35%
Division (M55-59)
#0 / 1648
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:12
Rank: #6518
Start → 5K
21:12 | 6:49/mi
10K· 6.21 mi
43:02
Rank: #7343 (-825)
5K → 10K
21:50 | 7:02/mi
15K· 9.32 mi
1:05:09
Rank: #7691 (-348)
10K → 15K
22:07 | 7:07/mi
20K· 12.43 mi
1:27:50
Rank: #7944 (-253)
15K → 20K
22:41 | 7:18/mi
Half· 13.11 mi
1:32:48
Rank: #8018 (-74)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:51:00
Rank: #8256 (-238)
Half → 25K
18:12 | 7:30/mi
30K· 18.64 mi
2:16:18
Rank: #8944 (-688)
25K → 30K
25:18 | 8:09/mi
20M
2:27:16
Rank: #9090 (-146)
30K → 20M
10:58 | 8:04/mi
21M
2:36:09
Rank: #9271 (-181)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:41:55
Rank: #9291 (-20)
21M → 35K
5:46 | 7:42/mi
23M
2:51:56
Rank: #9284 (+7)
35K → 23M
10:01 | 8:00/mi
24M
2:59:55
Rank: #9343 (-59)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:06:46
Rank: #9364 (-21)
24M → 40K
6:51 | 8:01/mi
25.2M
3:10:02
Rank: #9457 (-93)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:18:02
Rank: #9526 (-69)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:48
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:45:14
Pace8:02 /mi
📊Positive Split: 13.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1021:126:4921:12
6:49
-
10K
6.21 mi11:11:0043:026:5621:50
7:02
+0:13
15K
9.32 mi11:33:071:05:096:5922:07
7:07
+0:05
20K
12.43 mi11:55:481:27:507:0422:41
7:18
+0:11
Half
13.11 mi12:00:461:32:487:054:58
7:17
-0:01
25K
15.53 mi12:18:581:51:007:0918:12
7:30
+0:13
30K
18.64 mi12:44:162:16:187:1925:18
8:09
+0:39
20M
20.00 mi12:55:142:27:167:2210:58
8:04
-0:05
21M
21.00 mi13:04:072:36:097:268:53
8:53
+0:49
35K
21.75 mi13:09:532:41:557:275:46
7:42
-1:11
23M
23.00 mi13:19:542:51:567:2910:01
8:00
+0:18
24M
24.00 mi13:27:532:59:557:307:59
7:59
-0:01
40K
24.85 mi13:34:443:06:467:316:51
8:01
+0:02
25.2M
25.20 mi13:38:003:10:027:323:16
9:28
+1:27
Finish
26.22 mi13:46:003:18:027:348:00
7:51
-1:37

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:49 /mi

Average Pace

7:34 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:00

56% of race

Time at Steady Pace

1:14:53

38% of race

Time at Slower Pace

12:09

6% of race

Average Pace: 7:33 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:49:1021:126:4921:12
6:49
#6518
10K
6.21 mi11:11:0043:026:5621:50
7:02
#7343
15K
9.32 mi11:33:071:05:096:5922:07
7:07
#7691
20K
12.43 mi11:55:481:27:507:0422:41
7:18
#7944
Half
13.11 mi12:00:461:32:487:054:58
7:17
#8018
25K
15.53 mi12:18:581:51:007:0918:12
7:30
#8256
30K
18.64 mi12:44:162:16:187:1925:18
8:09
#8944
20M
20.00 mi12:55:142:27:167:2210:58
8:04
#9090
21M
21.00 mi13:04:072:36:097:268:53
8:53
#9271
35K
21.75 mi13:09:532:41:557:275:46
7:42
#9291
23M
23.00 mi13:19:542:51:567:2910:01
8:00
#9284
24M
24.00 mi13:27:532:59:557:307:59
7:59
#9343
40K
24.85 mi13:34:443:06:467:316:51
8:01
#9364
25.2M
25.20 mi13:38:003:10:027:323:16
9:28
#9457
Finish
26.22 mi13:46:003:18:027:348:00
7:51
#9526
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi6518593559358462(Top 30%)7221(Top 45%)7221(Top 438%)
10K6.21 mi3.10 mi7343-8256547-6126547-6128123(Top 29%)7046(Top 44%)7046(Top 428%)
15K9.32 mi3.11 mi7691-3486772-2256772-2258462(Top 30%)7221(Top 45%)7221(Top 438%)
20K12.43 mi3.11 mi7944-2536918-1466918-1469053(Top 32%)7478(Top 46%)7478(Top 454%)
Half13.11 mi0.68 mi8018-746969-516969-519767(Top 34%)7895(Top 49%)7895(Top 479%)
25K15.53 mi2.42 mi8256-2387089-1207089-1209995(Top 35%)7866(Top 49%)7866(Top 477%)
30K18.64 mi3.11 mi8944-6887430-3417430-34112376(Top 44%)8849(Top 55%)8849(Top 537%)
20M20.00 mi1.36 mi9090-1467488-587488-5810869(Top 38%)7962(Top 49%)7962(Top 483%)
21M21.00 mi1.00 mi9271-1817548-607548-6012778(Top 45%)8719(Top 54%)8719(Top 529%)
35K21.75 mi0.75 mi9291-207538+107538+1010100(Top 36%)7410(Top 46%)7410(Top 450%)
23M23.00 mi1.25 mi9284+77498+407498+409998(Top 35%)7227(Top 45%)7227(Top 439%)
24M24.00 mi1.00 mi9343-597497+17497+111083(Top 39%)7707(Top 48%)7707(Top 468%)
40K24.85 mi0.85 mi9364-217471+267471+2610258(Top 36%)7171(Top 45%)7171(Top 435%)
25.2M25.20 mi0.35 mi9457-937500-297500-2914348(Top 51%)9077(Top 56%)9077(Top 551%)
Finish26.22 mi1.02 mi9526-697494+67494+611779(Top 41%)7917(Top 49%)7917(Top 480%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8462

Males

7221

M55-59

7221

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8123

Males

7046

M55-59

7046

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8462

Males

7221

M55-59

7221

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9053

Males

7478

M55-59

7478

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9767

Males

7895

M55-59

7895

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9995

Males

7866

M55-59

7866

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12376

Males

8849

M55-59

8849

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10869

Males

7962

M55-59

7962

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12778

Males

8719

M55-59

8719

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10100

Males

7410

M55-59

7410

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9998

Males

7227

M55-59

7227

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11083

Males

7707

M55-59

7707

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10258

Males

7171

M55-59

7171

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14348

Males

9077

M55-59

9077

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11779

Males

7917

M55-59

7917

Passing Analysis

Category:
Athletes Passed
792
Passed By
3800
Net Change
-3008
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6518
5K → 10K28853-825#6518#7343
10K → 15K51399-348#7343#7691
15K → 20K68321-253#7691#7944
20K → Half1286-74#7944#8018
Half → 25K63301-238#8018#8256
25K → 30K77765-688#8256#8944
30K → 20M67213-146#8944#9090
20M → 21M49230-181#9090#9271
21M → 35K5272-20#9271#9291
35K → 23M115108+7#9291#9284
23M → 24M68127-59#9284#9343
24M → 40K6788-21#9343#9364
40K → 25.2M20113-93#9364#9457
25.2M → Finish55124-69#9457#9526
TOTALS7923800-3008
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing